package com.huawei.struts.dao;

import java.util.Date;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.st.model.LjwCommentT;

/**
 * A data access object (DAO) providing persistence and search support for
 * LjwCommentT entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see com.st.model.LjwCommentT
 * @author MyEclipse Persistence Tools
 */

public class LjwCommentTDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(LjwCommentTDAO.class);
	// property constants
	public static final String COMMENT_CONTENT = "commentContent";
	public static final String ENTITY_ID = "entityId";
	public static final String USER_ID = "userId";
	public static final String ENTITY_TYPE = "entityType";

	protected void initDao() {
		// do nothing
	}

	public void save(LjwCommentT transientInstance) {
		log.debug("saving LjwCommentT instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(LjwCommentT persistentInstance) {
		log.debug("deleting LjwCommentT instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public LjwCommentT findById(java.lang.Integer id) {
		log.debug("getting LjwCommentT instance with id: " + id);
		try {
			LjwCommentT instance = (LjwCommentT) getHibernateTemplate().get(
					"com.st.model.LjwCommentT", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(LjwCommentT instance) {
		log.debug("finding LjwCommentT instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding LjwCommentT instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from LjwCommentT as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByCommentContent(Object commentContent) {
		return findByProperty(COMMENT_CONTENT, commentContent);
	}

	public List findByEntityId(Object entityId) {
		return findByProperty(ENTITY_ID, entityId);
	}

	public List findByUserId(Object userId) {
		return findByProperty(USER_ID, userId);
	}

	public List findByEntityType(Object entityType) {
		return findByProperty(ENTITY_TYPE, entityType);
	}

	public List findAll() {
		log.debug("finding all LjwCommentT instances");
		try {
			String queryString = "from LjwCommentT";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public LjwCommentT merge(LjwCommentT detachedInstance) {
		log.debug("merging LjwCommentT instance");
		try {
			LjwCommentT result = (LjwCommentT) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(LjwCommentT instance) {
		log.debug("attaching dirty LjwCommentT instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(LjwCommentT instance) {
		log.debug("attaching clean LjwCommentT instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static LjwCommentTDAO getFromApplicationContext(
			ApplicationContext ctx) {
		return (LjwCommentTDAO) ctx.getBean("LjwCommentTDAO");
	}
}